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Which statement about safe storage moisture is FALSE?

  • A.It is lower for oilseeds than for cereals
  • B.It interacts with temperature in setting storage life
  • C.It is the same for all commodities
  • D.It follows from the equilibrium relative humidity at which moulds grow

Answer: C

Correct answer: It is the same for all commodities

This is the false statement. Safe storage moisture varies widely by commodity - about 14 per cent for paddy, 13.5 for wheat and maize, but only about 7 per cent for groundnut kernel.

The other three are true. It is lower for oilseeds, because oil holds no water and so the same equilibrium relative humidity is reached at a lower stated moisture; it interacts with temperature in setting storage life, the two compounding one another; and it is derived from the equilibrium relative humidity at which moulds grow, about 70 per cent, which is the constant across commodities.

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